Hi Christophe, This code looks ok and should work fine. The whole part within the brackets is Magritte, the rest is plain Seaside. So depending on why you are blocked, you might want to check out different resource: - If it is the Magritte part, you can read my master thesis [1] and or re-ask the question in the Pier, Magritte mailing list [2]. - If it is the Seaside part that poses the problem, you might want to check out my Seaside tutorials [3] or re-ask the question in the Seaside mailing list [4]. Cheers, Lukas [1] http://www.iam.unibe.ch/~scg/Archive/Diploma/Reng06a.pdf [2] http://www.iam.unibe.ch/mailman/listinfo/smallwiki [3] http://www.lukas-renggli.ch/smalltalk/seaside/tutorial [4] http://lists.squeakfoundation.org/cgibin/mailman/listinfo/seaside -- Lukas Renggli http://www.lukas-renggli.ch